baber/WOPTO huggingface dataset:
Patent GB-682700-A (GB)
Title: A pirn collecting device for pirn winding machines
IPC: B65H49/38
Filed: 1950-02-15
Abstract: 682,700. Collecting and removing pirns from winding machines. WHITEHEAD, D. A. Feb. 14, 1951 [Feb. 15, 1950], No. 3829/50. Class 120(iii) Filled pirns are doffed directly from the spindles of a pirn-winding machine into boxes or receptacles F situated below them, the boxes when full being turned over on hinges E (as shown on the left) to supply the filled pirns into transporting containers or conveyers. The boxes are hinged to a rod D carried by brackets C on an openwork frame A attached to brackets B on the end frames of the machine; they are located between the brackets C and normally rest on frame A. The boxes can be emptied individually to avoid mixing pirns on which different counts of weft are wound.
Patent GB-243205-A (GB)
Title: Improvements in sheet folding machines
IPC: B65H45/18
Filed: 1925-02-11
Abstract: 243,205. Kleim, G. Feb. 11, 1925. Folding paper.-Paper sheets are conveyed from one folding-device, comprising rollers a and a folding-blade h, to a similar device b, h by a pivoted guide g which receives the sheet from the rollers a and is swung downwardly so as to position the sheet for folding by the second blade. The guide g is slotted for the passage of the blade.
Patent GB-970131-A (GB)
Title: Improvements relating to sound reproducing and recording apparatus
Inventor: ALDRIDGE PETER JOHN
IPC: G11B15/10
Filed: 1962-02-01
Abstract: 970,131. Controlling tape-drives. MAGNAVOX ELECTRONICS CO. Ltd. Jan. 16,1963 [Feb. 1, 1962], No. 3903/62. Heading G5R. A sound recorder, as otherwise detailed in Specifications 958,845 and 958,846, has three rocking keys, 40, and two similar behind it, not visible in Fig. 3 and sharing a common pivot 41 each linked by means such as 44 to links 66, 47 and 62 respectively movable to engage rewind, forward play and fast forward drives. Pins 67, 53, 63 on the links slide in slots 68, 55,64 in the machine plate 1, advancement of 53 preventing advancement of 67 or 63 along the inclined slots 69, 65 in an interlock plate 56, or advancement of 67 or 63 causing lateral transfer of the plate 56 together with means 57, the fore-edge of the plate 56 inhibiting the pin 53 and the side-channels 65a, 69a inhibiting pins 63, 67 as appropriate. Movement of the means 57 engages a more positive, fast-winding drive with one or other of the reels and advancement of any of the pins 53, 67 or 63 engages linkage (Figs. 1, 2, not shown) to remove reel brakes. Advancement of the pin 53 also engages a capstan pinch-roller with the tape.
Patent GB-686496-A (GB)
Title: Improvements in igniter plugs for gas turbine engines
IPC: H01T13/16
Filed: 1951-02-19
Abstract: 686,496. Sparking plugs. GENERAL MOTORS CORPORATION. Feb. 19, 1951 [Feb. 28, 1950], No. 3922/51. Class 7 (iv). In an igniter plug for a gas turbine engine comprising a casing 2, Fig. 1, haying an aperture 10. ,in its wall and an insulator 4, Fig. 2; with a centrally disposed electrode 32 mounted in the casing, the casing and insulator are arranged in spaced relationship along a part of the length of the plug to form an air duct 52 in Communication with the aperture 10 and having converging wall portions adjacent the end thereof to provide a restricted outlet 56, adjacent the spark gap, from the air duct 52; the casing may be cylindrical and have a plurality of inturned tapered electrodes 13, Fig, 1, as well as embodying a mounting flange 6. The insulator 4, Fig. 2, has a enlarged part 18 forming two shoulders 20 and 22 by which it is secured in the plug casing through a connector 14, gaskets being interposed between the shoulders and the casing, the upper one of which is in contact with the lower edge of the connector 14. The upper portion of the insulator 4 is recessed at 30 to accommodate the ignition' lead, not shown, whilst the lower part of the insulation is tapered and spaced from the casing by the cooling air duct 52, which duct communicates at the active end of the plug with the spark gap and at an intermediate point with the radial inlet aperture 10. The centre electrode 32, Fig. 2, has a knurled part 38 engaging the bore in the insulator 4, the lower surface of which is recessed at 34 for cooling purposes; the electrode 32 is connected with a terminal 42 in the upper insulator recess 30 by a conductive element 44. In a modification, the plug casing is formed in two parts which are joined together just above the upper insulator shoulder.
Patent GB-1394503-A (GB)
Title: Method for separating monosaccharides fromsarch conversion syrups
IPC: C13K13/00
Filed: 1973-01-25
Abstract: 1394503 Separating starch hydrolysis monosaccharides SUOMEN SOKERI OSAKEYHTIO 25 Jan 1973 [26 Jan 1972] 3943/73 Heading C2S Monosaccharides from a starch conversion syrup are separated by introducing of an aq. feed solution containing the syrup, and having a dry material content of 20-60 wt. per cent at a flow rate of 0À2-4À0 cubic metres/hour/ square metre of cross-section of resin column, to a column of a salt of a polystyrene sulphonate cation exchange resin cross-linked with 2-8 wt. per cent divinylbenzene, having a height of 2À5-5 m., the resin being of uniform particle size, the meaning particle size being 20-100 U.S. mesh, and recovering, from the column a first fraction containing ditri- and oligosaccharides with a small amount of monosaccharides and a second fraction of substantially pure monosaccharide, the second fraction being optionally recovered in three subfractions comprising (a) glucose, (b) glucose and fructose and (c) fructose, the second subfraction being recycled and being combined with fresh feedstock.
Patent GB-368486-A (GB)
Title: Motor car change speed gearing
IPC: F16H3/091
Filed: 1931-02-07
Abstract: 368,486. Change-speed gearing. STANDARD MOTOR CO., Ltd. and GRINHAM, E. G., Canley, Coventry. Feb. 7, 1931, No. 3947. [Class 80 (ii).] In motor-car changespeed gearing of the layshaft type, one or more gears 19, 20, Fig. 1, are supported in capped plain bearings clear of their associated shaft 8. The lower parts 21 of the plain bearings supporting the gears 19, 20, are formed in a bridge 22, Fig. 2, connecting and integral with the side walls 23 of the gear casing 2. Apertures 24, Fig. 3, in this bridge allow the gears 19, 20 to mesh with layshaft gears 17, 18. The complementary parts 25 of the bearings are formed in a common cap 26 secured by bolts 27 to the bridge 22. The casing 2 is closed at the top and bottom by covers 3, 4. Alternatively, each bearing may have a separate bridge and cap. A double clutch 30 sliding on the driven shaft 8 engages a constant-mesh pinion 14 on the driving shaft 7 for direct drive, and engages inside the gear 19 for first reduced speed. A clutch 33 and gear 16 slide together to effect two lower speeds. An idler 35 is for reversing.
Patent GB-387130-A (GB)
Title: Improvements in or relating to electric discharge tubes for generating ultra-violet rays
IPC: H01J63/00
Filed: 1932-02-10
Abstract: 387,130. Discharge lamps. HUMMEL, C., 34, Eisenacher Strasse, Berlin. Feb. 10, 1932, No. 3972. Convention date, Feb. 11, 1931. [Class 39 (i). A fluorescent substance which emits ultra-violet light under electronic bombardment is provided within a lamp having at least one independently heated activated electrode, e.g. on an electrode or on the walls of the bulb of quartz or the like. The bulb may be filled with a noble gas or a vapour. Each electrode may consist of a hot filament and a plate as shown in Fig. 2. The fluorescent substance may be made conductive by addition of suitable metal powder, or a network, or metal sulphides. A single electrode, Fig. 4, arranged so that there is a potential drop across neighbouring points of the helices 11, 12 may provide incandescent light in addition to an electron stream. The bulb may be partly covered with a reflector such as a metal film of chromium or magnalium. Suitable fluorescent materials are iron or mercury compounds, or yttrium, lanthanum, or gadolinium compounds, which may be mixed with sulphides, selenides, or oxides of the alkali or alkaline earth metals, or with boron compounds, or sulphides or zinc or aluminium. The Specification as open to inspection under Sect. 91 also comprises lamps having cold electrodes which may be grid shaped and having a filling of noble gas or mercury vapour at a pressure of one hundredth to several mms. This subject-matter does not appear in the Specification as accepted.
Patent GB-449947-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/02
Filed: 1935-05-30
Abstract: 449,947. Electrolytic condensers. DUBILIER CONDENSER CO. (1925), Ltd., Ducon Works, Victoria Road, North Acton, London. May 30, 1935, No. 3978/36. Convention date, May 31, 1934. Divided out of 449,936. [Class 37] An electrolyte consists solely of an alcohol and a citrate with or without added water. Preferably a polyhydric alcohol such as ethylene glycol or glycerine witliin the limits 90-10 parts by weight is reacted with citric acid or ammonium citrate within the limits 10-90 parts at a temperature of about 250‹ F.
Patent GB-139462-A (GB)
Title: Improvements in and relating to nitrogeneous fertilizers
IPC: C05C9/00
Filed: 1920-02-09
Abstract: 139,462. Norsk Hydro - Elektrisk Kvaelstofaktieselskab. Feb. 24, 1919, [Convention date]. Manures.-A mixture of urea nitrate and carbonate of lime is used as a fertilizer. Powdered limestone and marble are suitable forms of the carbonate.
Patent GB-873230-A (GB)
Title: Improved polishing composition
IPC: C09K3/30
Filed: 1958-02-07
Abstract: A combined cleaning and polishing composition comprises by weight: 15-25 parts of finely-divided abrasive, 8-16 parts of a wax, 2-12 parts of a dialkylpolysiloxane, 40-70 parts of a hydrocarbon solvent, 8-20 parts of a propellant that volatilizes at ambient temperatures and pressures, and 1-3 parts of an ethylene glycol monoalkylether having 1-7C. atoms in the alkyl group.  Ingredients specified are: abrasives-diatomaceous earth and hydrated alumina; waxes-paraffin, microcrystalline, oxidized microcrystalline, polyethylene, oxidized polyethylene, carnauba, bees, hydrogenated castor oil, ouricury and petrolatum; siloxanes-dimethyl-polysiloxane; solvents-mineral spirits; glycol ethers-ethyleneglycolmonobutylether; propellants-dichlorodifluoromethane and dichlorotetrafluoroethane. Examples are given.
Patent GB-765253-A (GB)
Title: Improvements in or relating to gaskets
Inventor: KORODI PAUL C
IPC: F25D23/08
Filed: 1955-02-11
Abstract: 765,253. Joint-making packing. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Feb. 11, 1955, No. 4122/55. Class 122 (3). [Also in Groups X and XIII] A resilient gasket such as for a refrigerator door 11, Fig. 2, comprises an elongated hollow body 16, having a convex external surface 22 and a longitudinal protuberance 24 on the surface 22, the protuberance having a first portion 26 extendng away from body 16 and a second portion 28 joined thereto and extending back into the space between portion 28 and surface 22, the free edge 29 of portion 28 lying adjacent surface 22. The body 16 is crescent-shaped and joined at one end to a flange 18 which may be ribbed as at 20 and which is clamped between inner and outer door panels 13, 12, securing means such as screws, not shown, extending through panel 13 and into panel 12 being covered by an extension 21 on the free edge of body 16. The portion 26 joins surface 22 away from the middle of body 16 so that on closing the door 11, the flange 31, Fig. 4, of the refrigerator cabinet causes protuberance 24 to fold towards body 16 and the free edge 29 to bend surface 22 along the centre thereof. In a modification the inner wall of body 16 is less curved and protuberance 24 has a raised portion at the junction between portions 26 and 28.
Patent GB-956808-A (GB)
Title: Process for the production of shaped articles from polymer/filler compositions
IPC: B29C48/03
Filed: 1962-02-02
Abstract: A process for the production of dimensionally and thermally stable elements from polyolefin/filler/organic peroxide mixtures comprises effecting cross-linking during or after shaping by heating the mixture in an alternating electrical field of frequency more than 200 megacycles per second, the mixture containing a filler comprising carbon in an amount (e.g. 10 to 250 parts per 100 of polymer) sufficient to produce a dielectric loss factor of the order of 1. Specified polyolefins are those derived from ethylene, propylene and/or butylene, and the filler may be gas-, flame-, acetylene- and/or furnace-soot and/or graphite. Optional ingredients are guanidines, lead salts, lead oxide, magnesium oxide and zinc oxide. In the example the element is tube sections and the heating is in an electron furnace using a frequency of 2400 megacycles per second.
Patent GB-590738-A (GB)
Title: Improvements in or relating to a photographic film reel
IPC: G03B21/32
Filed: 1945-02-19
Abstract: 590,738. Photographic and kinematograph film reels. KODAK, Ltd. Feb. 19, 1945, No. 4142. Convention date, March 10, 1944. [Classes 97 (i) and 98 (i)] In a spool comprising a sheet metal hub with end flanges, the hub has a transverse filmentraining slot adjacent which are arranged lugs projecting inwardly of the hub and away from the slot for engaging perforations in the film. As shown, the hub 12 carries on each side of the slot 15 a pair of lugs 25, 26 pressed inwardly from the hub, the members of each pair being spaced apart on the hub by a distance equal to the transverse separation of the film-feed perforations. The leading end 16 of the film is passed through the slot 15 and the spool rotated anti-clockwise, causing the film to tighten round the hub, whereupon the end of the film pivots about the slot edge 14 until a pair of film perforations slips over and engages the lugs 25, so locking the film end to the hub. At the end of the rewinding operation, the end 34 of the film is drawn into the position indicated by the dotted lines and so pivots on the slot edge 13, causing the perforations to become disengaged from the lugs 25. The provision of two pairs of lugs enables the film to be wound on in either direction.
Patent GB-1524945-A (GB)
Title: Heating apparatus for the heat treatment of textile filaments or yarns
IPC: D06B23/18
Filed: 1977-02-02
Abstract: 1524945 Heating yarns HEBERLEIN MASCHINENFABRIK AG 2 Feb 1977 [12 Feb 1976 26 April 1976] 04191/77 Heading D1F In a yarn or filament heating apparatus consisting of a cylindrical container I of heating fluid medium e.g. saturated steam through which the yarn e.g. of a polyamide or polyester passes axially, each end is sealed by a plunger 5 movable in fluid-tight manner (comparable with a piston) in a tubular extension 3 and also removable therefrom, as by means of a handle 6, to facilitate threading-up. The plunger comprises a longitudinal depression consisting of or including at least one groove 7 of U-cross-section generally of equal depth h and width b and along which the running yarn passes when entering and leaving the container with minimum escape of heating fluid. If the yarn is known to have enlarged portions or knots, or if the diameter will change e.g. during stretching, then the grooves are correspondingly larger and the effects of loss of heating fluid therefrom are minimised by recesses distributed along the length of the plunger at a determined distance from each other, extending transversely to the plunger axis and connected with the groove(s) whereby the pressure of heating fluid flowing along the groove(s) is reduced in step-wise manner. Such recesses may be constituted by cavities, annular grooves or openings in the form of segments of cylinders intersecting the depression, Figs. 4-9 (not shown).
Patent GB-989804-A (GB)
Title: Direct cooling of rotor winding of electric rotating machines
IPC: H02K3/22
Filed: 1962-02-01
Abstract: 989,804. Cooling dynamo electric machines. ZAVODY V.I. LENINA PLZEN NARODNI PODNIK. Feb. 1, 1962 [Feb. 10, 1961], No. 4204/62. Heading H2A. A dynamo-electric machine having hollow or profiled rotor conductors is cooled by finning the end turns of the conductors so that they provide one or more chambers 2 and feeding a stream of coolant to the chambers, and from them into the passages provided by the hollow conductors and between profiled conductors. The chambers 2 may be formed by separate overlapping portions 3, 4 of the end turns, Fig. 2, or by cranking the end turn, Fig. 3 (not shown). Portions 5 of the core may be provided to act as deflectors.
Patent GB-1509629-A (GB)
Title: Dc fed bridge circuit in an electrical inverter
IPC: H02M7/523
Filed: 1976-02-03
Abstract: 1509629 Inverter construction AEG-ELOTHERM GmbH 3 Feb 1976 [20 Feb 1975] 04213/76 Heading H2F In a bridge inverter having parallel-connected semi-conductor switching devices, such as thyristors 1 . . . 4, in each arm, each of the four points of the bridge being formed by one of four parallel bus-bars 6 . . . 9, the elements being disposed so that adjacent parallel current paths belong to arms of the bridge extending from one bus-bar to opposite corners of the bridge. The four bus-bars may be in the same plane or in a three-dimensional array. The arrangement improves the current distribution with respect to mutual induction. The load may be a tuned induction heater.
Patent GB-621933-A (GB)
Title: Improvements in and relating to sliding and folding doors for closing openings of great height
IPC: E05D15/26
Filed: 1947-02-14
Abstract: 621,933. Hinges. EDUCATIONAL SUPPLY ASSOCIATION, Ltd., LEONARD, J. W., and HOWLETT, A. D. Feb. 14, 1947, No. 4294. [Class 65 (ii)] [Also in Group X] In sliding-folding doors comprising hinged pairs of narrow panels hinged at their outer ends to columns mounted top and bottom in guide tracks running along the opening, the panels are hung on the columns by pintle hinges of which the sockets 13 are supported on the columns by means of flexible resilient bushes 20 and have a taper bore with a round bottom of rather greater radius than that of the pintle end the pintles having a generous clearance throughout their length. The pintles 12 have a stem 14 which is a forcefit in a bore 15a in a bracket 15 secured to the door panel 11 and have a shoulder 16 between which and the lower face 17 of the bracket is interposed an aluminium cup 29 retaining a felt washer 30. The socket 13 has a similar stem 18 and shoulder 19, a rubber &c. bush 20 being bonded to the stem, its flange 24 forming a seating for the shoulder 19. The bush is also bonded into a steel sleeve 22 fitting into mating half-round grooves formed respectively in a bracket 26 secured to the column 10 and a cap 27 bolted to the bracket. The lowest hinge of a set connecting a panel to a column is preferably an ordinary non-tapered pintle hinge, the end load being transmitted by a ball or roller thrust bearing between the upper face of the socket and a shoulder formed on the pintle or pintle bracket.
Patent GB-1029771-A (GB)
Title: Manufacture of ketene
Filed: 1963-02-01
Abstract: A process for the manufacture of ketene by thermal dehydration of acetic acid vapour includes the step of passing the thermal dehydration mixture comprising ketene and water vapour through a heat exchanger, the thermal dehydration mixture being cooled by incoming acetic acid vapour in the heat exchanger from the reaction temperature to a temperature not below about 350 DEG  C., the maximum time of contact of the ketene with the water vapour in the heat-exchanger being proportional to the lowest temperature attained in the heat-exchanger, and being such that it is not more than 0.4 sec. at 350 DEG  C., or a factor of 2 thereof for each 10 DEG  C. increase above 350 DEG  C. for the said lowest temperature attained. The heat-exchanger used preferably comprises an externally thermally insulated pair of concentric tubes preferably working on the countercurrent principle.  This heat-exchanging system can be inserted in any installation for the manufacture of ketene by thermal dehydration.
Patent GB-746413-A (GB)
Title: Method of recovering para-nitrochlorobenzene
IPC: C07C201/16
Filed: 1954-02-15
Abstract: p-Nitrochlorobenzene is separated from its mixture with o-nitrochlorobenzene by heating the mixture with an excess of aniline until reaction is complete and then separating the p-nitrochlorobenzene from the reaction product, 2 - nitrodiphenylamine, by distillation.  The heating with aniline may be at a temperature of 175-205 DEG C. for 30 hours, preferably in the presence of an acid-binding agent such as alkali metal carbonate or bi-carbonate.  Before the final distillation the excess aniline and water formed in the reaction may be removed as an azeotrope, the recovered aniline being returned to the process; and the remaining mixture may be washed with water.
Patent GB-1392802-A (GB)
Title: Chopped light ignition triggering system and solid state transistor ignition
IPC: F02P7/073
Filed: 1971-02-11
Abstract: 1392802 Ignition systems; regulating A N TRASS 14 April 1972 [11 Feb 1971]  4460/71 Heading F1B The invention relates to a transistor ignition system for an internal-combustion engine of the kind in which the timing of pulses delivered to an ignition coil is controlled by means of a disc (not shown) rotatable between a light source and a photo-electric device Q1, the photo-electric device being connected to the ignition coil through a transistorized amplifier circuit Q 2 , Q 3 . According to the invention the transistorized amplifier circuit includes circuit means adapted and arranged to produce an oscillatory voltage at least under starting and low speed conditions whereby a shower of sparks is produced at each sparking plug on ignition. The ignition timing may be varied centrifugally and the dwell of the system may be increased with increasing speed. A tachometer or an electric fuel injection system may be operated from the ignition system. The system may be readily incorporated in existing vehicles.
Patent GB-713421-A (GB)
Title: Improvements in projection screens for stereoscopic pictures
IPC: G03B21/60
Filed: 1950-08-22
Abstract: 713,421. Projection screens. FOX, H. A. Aug. 22, 1951 [Aug. 22, 1950], No. 4503/50. Class 97(1) A screen for projecting stereoscopic pictures comprises a sheet of transparent refracting material having convex spherical lens elements on the viewers' side and, on the other side, a processed multilayer colour emulsion which is black except in certain areas of complementary colours disposed. so that light incident on the differently coloured areas is directed by the lenses to left and right eye viewing zones respectively, the emulsion layer being covered with a diffusing layer. The screen may be prepared as shown. The transparent base S with lenses L and colour emulsion E, as yet unexposed, is mounted in the auditorium and the seats of pit and balcony covered with sheets P and B with red and blue-green stripes r, g, in positions of right and left eye viewing zones, separated by black stripes b. The emulsion is exposed through the lenses L and processed. Anaglyphic pairs of pictures are then projected on to the screen in superposition through red and blue-green filters, a reversing mirror normally being used but not being necessary for episcopic projection. Other pairs of colours may be used e.g. blue and yellow, copperruby and signal green. The Provisional Specification describes an embodiment wherein transparent uncoloured areas behind alternate rows of screen lenses divert light to left and right eye viewing zones. A picture of the intercalated strip type is projected so that left and right eye image strips register with the appropriate rows of lenses.